I just bought a Forest River 2013 X-Lite and it has the Ultra Lube axles and I was wondering what grease comes packed in the bearings from the factory. I want to pump some grease in some time but I don't like mixing grease. The salesman said it was napa lithium wheel bearing grease but I need to know for sure as I drive the desert in tripple digit weather.I sure don't feel like packing the bearings of a brand new trailer.I want to enjoy it for a while. Looking at another post it looks like when you pump the grease in it goes to the back of the hub or rear bearing and works its way forward and comes out up front some how? how do you get the old grease out? Is it easy and I'm asking a stupid question? Thank You Mike

I just bought a Forest River 2013 X-Lite and it has the Ultra Lube axles and I was wondering what grease comes packed in the bearings from the factory. I want to pump some grease in some time but I don't like mixing grease. The salesman said it was napa lithium wheel bearing grease but I need to know for sure as I drive the desert in tripple digit weather.I sure don't feel like packing the bearings of a brand new trailer.I want to enjoy it for a while. Looking at another post it looks like when you pump the grease in it goes to the back of the hub or rear bearing and works its way forward and comes out up front some how? how do you get the old grease out? Is it easy and I'm asking a stupid question? Thank You Mike

Your ultra lube axles are very handy. You need to meet the Mauf. specks of the grease. Napa sells a tractor bearing lube which is rated for 500 degrees it comes in a green tube, they also have a red tube that is rated at 550 degrees. Both meet the specks that are recommended. Do not use lithium. As you pump the new grease in the old will be pushed out and collected around the zerk fitting area and then just wipe it out. becareful the edges are a little sharp and can cut your finger. I had to replace 3 zerk fittings being they would not accept grease got them at napa. Just as a note my TT came about a tube and a half low. Think of the unit as U shaped with a channel going down the center. You do not have to pull the bearings out to repack. Now with that said you should inspect your bearing depending on your usage. If you pull the bearing you will need to get new seals after inspection. It is a pretty easy system but make sure to check your grease levels by adding grease now and then and you will be a happy camper....

Huh ?? I believe Dexter, Lippert, and Al-Ko all recommend using lithium based complex grease.

mtnguy you are correct. The manual reads "the soap type should be lithium complex or equivalent the specs which are important are USE NLG1 grade 2 with a min. drop point of 440 degrees" I do not use lithium grease except on my boat trailer, being I hope I never back my 5th in the water. I guess I'm just a farmer at heart...

I think the OP was concerned with matching the existing grease ("...I don't like mixing grease..."). Maybe a call to the axle manufacturer -- or FR -- is in order?

One of the requirements in the specs on grease and oil is it must be compatible with others having the same specs. Don't worry about mixing like kinds of grease or oil. The military does not use a specific brand on a specific vehicle. That's why the oils & greases are compatible.